US3882735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for rotating reciprocally
Assignee: Suwa Seikosha KK
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Filing: 1973-11-20
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Granted: 1975-05-13
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Expires: 1993-11-20
Abstract
Abstract A device for converting rotation in a single direction into reciprocating rotation comprises meshing sector gears and biasing means for rotating a driven gear in a direction opposite to that in which it is driven by a driving gear, said rotation in said opposite direction occurring when the untoothed portion of the driving gear is proximate said driven gear.
Inventors
- 👤 Tadayoshi Shimodaira
- 👤 Kazuto Tamai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:38
CPC Classifications
B; B41; B41J; B41J1/00; B41J1/22; B41J1/32; F; F16; F16H; F16H19/00; F16H19/08; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/18976; Y10T74/19; Y10T74/1987; Y10T74/19874
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
299 words
A device for translating unidirectional rotation into reciprocal motion comprising a unidirectionally rotatable first shaft, a driving wheel mounted on said first shaft and rotatable therewith, said driving wheel having a periphery including a plurality of gear teeth provided in a first portion thereof, said gear teeth having substantially equi-height top and bottom lands, a cam provided in a second portion thereof adjacent said first portion, said cam radially extending on said driving wheel periphery, said second portion of said driving wheel having a radius which extends substantially to said top lands of said first portion, and a third portion between said first and second portions and contiguous therewith having a radius which extends no longer than to said bottom lands provided in said first portion, a second shaft, a driven wheel mounted on said second shaft for rotation therewith and having a plurality of gear teeth provided in a continuous portion of the periphery thereof, said gear teeth on said second wheel being substantially complementary with said gear teeth provided in said driving wheel said first and second shafts being in spaced relationship, one To the other, said driving wheel and said driven wheel being respectively aligned thereon for meshing engagement of respective gear teeth provided therein so as to permit said driving wheel to rotate said driven wheel in a first direction, said gear teeth provided in said driven wheel defining a concomitant plurality of top and bottom lands therein, said driven wheel having a remaining peripheral sector having a radius which extends no farther than said bottom lands provided in said continuous portion thereof, and a biasing means connected to said driven wheel for rotatably biasing said driven wheel in a direction opposite to that in which said driven wheel is driven by said driving wheel.
Claim 2
Independent Claim
299 words
A device for translating unidirectional rotation into reciprocal motion comprising a unidirectionally rotatable first shaft, a driving wheel mounted on said first shaft and rotatable therewith, said driving wheel having a periphery including a plurality of gear teeth provided in a first portion thereof, said gear teeth having substantially equi-height top and bottom lands, a cam provided in a second portion thereof adjacent said first portion, said cam radially extending on said driving wheel periphery, said second portion of said driving wheel having a radius which extends substantially to said top lands of said first portion, and a third portion between said first and second portions and contiguous therewith having a radius which extends no longer than to said bottom lands provided in said first portion, a second shaft, a driven wheel mounted on said second shaft for rotation therewith and having a plurality of gear teeth provided in a continuous portion of the periphery thereof, said gear teeth on said second wheel being substantially complementary with said gear teeth provided in said driving wheel said first and second shafts being in spaced relationship, one To the other, said driving wheel and said driven wheel being respectively aligned thereon for meshing engagement of respective gear teeth provided therein so as to permit said driving wheel to rotate said driven wheel in a first direction, said gear teeth provided in said driven wheel defining a concomitant plurality of top and bottom lands therein, said driven wheel having a remaining peripheral sector having a radius which extends no farther than said bottom lands provided in said continuous portion thereof, and a biasing means connected to said driven wheel for rotatably biasing said driven wheel in a direction opposite to that in which said driven wheel is driven by said driving wheel.
Claim 3
Dependent Claim
45 words
The device as claimed in claim 1 wherein said device further includes a stationary stopping means, and a pin mounted on said driven wheel, said pin being arranged thereon to contact said stopping means and for thereby establishing a rest position for said driven wheel.
Claim 4
Dependent Claim
41 words
The device as defined in claim 1, wherein at least one wheel having characters on the periphery thereof is mounted on said second shaft for reciprocal rotation therewith, said characters being of the type suitable for use in a flying printer.
Claim 5
Dependent Claim
27 words
The device as defined in claim 3 including means for stopping said driving wheel at a chosen position for bringing a selected character into a printing position.
Claim 6
Dependent Claim
37 words
The device as defined in claim 1, wherein said second portion of said driving wheel has an angle subtended thereby substantially equal to zero, said driven wheel thereby oscillating continuously as said driving wheel is rotated continuously.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |